Re: "ERROR: could not read block 6 ...: read only 0 of 8192 bytes" after autovacuum cancelled

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: "ERROR: could not read block 6 ...: read only 0 of 8192 bytes" after autovacuum cancelled
Date: 2009-11-10 18:59:19
Message-ID: 20091110185918.GB3798@alvh.no-ip.org
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Tom Lane wrote:
> Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> >> Looks OK, but please update the comment right before the
> >> RecordTransactionCommit, along the lines of "We prevent cancel
> >> interrupts after this point to mitigate the problem that you
> >> can't abort the transaction now".
>
> > BTW I'm thinking in backpatching this all the way back to 7.4 -- are
> > we agreed on that?
>
> Yeah, I would think the problems can manifest all the way back.

Done, thanks for the discussion.

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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